Oiling system for internal-combustion engines



Jan. 15, 1927. 7 1,614,773

F. S. BASTER OILING SYSTEM FOR INTERNAL COMBUSTION ENGINES Filed Oct. 5,1924 3 Sheets-Shee 1 INVEN TOR.

A TTORNEY.

Jan. 18 1927.

F. s. BASTER OILING SYSTEM FOR INTERNAL COMBUSTION ENGINES Filed Oct. 5,1924 3 Sheets-Sheet 2 IINVENTOR. p /MJ' ATTORNEY.

F. S. BASTER OILING SYSTEM FOR INTERNAL COMBUSTION ENGINES Filed Oct. 5,1924 3 Sheets-Sheet 3 INVENTOR. fizz 7 72145621171, m

A TTORNE Y.

Patented Jan. 18, 1927.

UNITED STATES 1,614,773 PATENT OFFICE.

FOREST S. BASTER, F DETROIT, I ICHIGAN.

ornmo sYs'rnM FOR INTERNAL-COMBUSTION aromas.

Application m October a, 1924. Serial no. 741,506.

' My invention relates to oiling systems for internal .combustionengines and. a special object of my improvements is to provide animproved oiling system for automobile engines that shall deliver to thearts requiring it aspecial quantityof lu ricating oil when the engine iscold and is just starting into motion. I accomplish this object by thedevice illustrated in the accompanying drawings in which z- Figure 1 isa side elevation, partly broken away, of an automobile engine with anapparatus embodying my invention attached thereto.

Fig. 2 is a sectional elevation on the line II, II, (Fig. 1), looking inthe direction of the arrows.

Fig. 3 is a detail sectional view of the auxiliary feed apparatus. r

Fig. 4 is a detail sectional view of amodified form of the auxiliaryfeed apparatus also showing adjacent parts of the engine.

Fig. 5 is a sectional detail view of a m'odified construction.

Fig. 6 is a sectional detail view of a part of the piston.

Fig. 7 is a detail partly in section showing the relation between theoil conduit and the valve-actuating part.

a indicates the engine of which a is the lower part of the crank caseand a the bore of a cylinder. a is the piston and a the cam shaft. b isa valve actuating rod. 0 is the -oil pump. This may be a conventionalconstruction which acts to force the lubricating oil from the lower partof the crank case through a conduit 0' and distribute it to the variousbearings and laces on the engine where the lubricating 011 is regularlyrequired.

d is a passage leading from the conduit 0* outward and having a valveseat thei-ein upon which a ball valve d en es dais a spring acting tohold the valve upon. its seat with the required force. d is ascrewthreaded piston engaging screw threads in the passage d and bearinupon the outer end of the spring d. d is. a screw-threaded stemextending axiall outward from the cylinder d and rovi ed with a slot atits outer end in which a screw-driver mayengage to turn the cylinder dto screw it inward or outward to adjust the tension of the spring d. dis anut engaging upon the stem d, its inner face engaging the wallaround the outer end of the passage d. The

nut d acts as a jam-nut to secure the cylinder d against accidentaldisplacement.

d is an overflow passage leading from tion of the passage 6 beyond thevalve 0. (2

is a stem extending outward from the piston e. The construction isaltogether similar to that of d.

e is a pipe forming an extension of the passages e, e, and leading to adistributing resery'o r f indicates conduits leading from the reservoirf to the bearings of the different valve actuating parts I). g is aconduit leading from. the reservoir f to a reservoir 9 upon the oppositeside of the engine. 9 is a conduit leadin from the reservoir 9 to theinterior sur ace of the cylinder (1 through an opening a""in thecylinder wall. each cylinder upon the same side of the c linder as thecrank on the working stro e. The piston a covers the opening a towardthe lower end of its stroke.

X The operation of the above described device is as follows The spring(1 is adjusted to the tension required for the ordinary operation oflubrication and the spring e is set to a lower tension, perhaps so thatthe valve e shall raise from its seat at a pressure 5 lbs. less thanthat required to raise the valve (1' from its seat. When the enginestarts up and the parts are cold, the ressure in the conduit 0 will riseconsiderabl above the normal and force the valve e rom its seat, thusfurnishing an additional supply of oil to the valve actuating part b andthe cylinder a and the piston a.

In the modification shown in Fig. 4, provision is made so that thepressure upon the spring 6 may be relieved at will to regulate t 1epressure so as to furnish the additional supply of oil at any timerequired, that is to say, by suitable conventional means a, the leverarm e resting upon the top oi the There is a conduit 9 to stem 6 andpivoted at e? is rocked to lessen the tension on the spring 6 so thatthe. Valve.

6 rises from its seat at Whatever pressure there may be in the system. i

In the modification shown in Fig. 5, the return passage for the reliefvalve is omitted and the relief passage d is connected directly by aconduit 6 with the reservoir In this case when the engine starts up thepressure accumulates and the valve d rises from its seat and oil isforced "as above described to the valve actuating apparatus and thecylinder and piston.

The oil is delivered at a because the piston is most strongly forcedaway from this wall by the lateral resultant of the force upon theconnecting rod.

An aperture a (Fig. 6) is formed through the piston wall so'tliat thejet of oil delivered at a may be projected through said aperture at oneposition of the piston to lubricate the joint between the connecting rodand piston.

What I claim is -l. The combination with an internal combustion enginehaving a force feed oiling system, of a branch passage communicatingwith said system and leading to a point requiring a special supply ofoil on starting the engine, and a valve controlled by the pressure ofthe oil in said system in said auxiliary passage opening away from themain system.

2'. Theco'mbination with an internal combustion engine having a forcefeed oiling system, of a branch passage communicating -with said systemand leading to a point releading from said system to a point requiringspecial lubrication on the starting of the engine and a pressurecontrolled valve in said auxiliary passage adapted to open at a lowerpressure than said relief valve.

4:. The combination with an internal combustion engine having a forcefeed oiling system, of a branch passage communicating with said systemand leading to an aperture in the cylinderi walloppos'itethe piston anda piston having an aperture through its wall adapted to register withthe aperture in the piston wall at one point of the stroke, the jointbetweenthe' piston and connecting rod being located oppositesa'idaperture for the purpose described. v

In testimony whereof, I sign this specification.

FOREST S. EASTER.

